CN107398161A - Coal-fired power station boiler flue gas moisture reclaims and the system and method for fine particle removing - Google Patents
Coal-fired power station boiler flue gas moisture reclaims and the system and method for fine particle removing Download PDFInfo
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- CN107398161A CN107398161A CN201710813524.6A CN201710813524A CN107398161A CN 107398161 A CN107398161 A CN 107398161A CN 201710813524 A CN201710813524 A CN 201710813524A CN 107398161 A CN107398161 A CN 107398161A
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 239000003546 flue gas Substances 0.000 title claims abstract description 106
- 239000010419 fine particle Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 30
- 230000023556 desulfurization Effects 0.000 claims abstract description 29
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims description 29
- 239000000498 cooling water Substances 0.000 claims description 28
- 230000001105 regulatory effect Effects 0.000 claims description 26
- 239000013535 sea water Substances 0.000 claims description 25
- 238000009833 condensation Methods 0.000 claims description 20
- 230000005494 condensation Effects 0.000 claims description 20
- 239000002826 coolant Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000003517 fume Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 238000005054 agglomeration Methods 0.000 abstract description 5
- 230000002776 aggregation Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000003245 coal Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003665 fog water Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/507—Sulfur oxides by treating the gases with other liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
- B01D51/02—Amassing the particles, e.g. by flocculation
- B01D51/06—Amassing the particles, e.g. by flocculation by varying the pressure of the gas or vapour
- B01D51/08—Amassing the particles, e.g. by flocculation by varying the pressure of the gas or vapour by sound or ultrasonics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses the system and method for a kind of recovery of coal-fired power station boiler flue gas moisture and fine particle removing, including flue gas input channel, wet flue gas desulfurization tower, heat exchanger entrance flue, condensing heat exchanger and chimney；Flue gas input channel is connected with the entrance of wet flue gas desulfurization tower, first order demister is provided with wet flue gas desulfurization tower, the outlet of wet flue gas desulfurization tower is connected through heat exchanger entrance flue with the flue gas side entrance of condensing heat exchanger, the flue gas side outlet of condensing heat exchanger is connected through second level demister with chimney, wherein, the front side of condensing heat exchanger gas approach inwall, rear side and top, and the front side of flue inner wall where condensing heat exchanger, rear side and top are provided with array sonic generator, the device and method can realize the recovery of flue gas reclaimed water share and the removing of fine particle, overcome traditional acoustic agglomeration efficiency low, sound pressure level is high, the shortcomings that energy consumption is big, and seed grain and extra water vapour need not be added.
Description
Technical field
The invention belongs to steam power plant field, is related to a kind of coal-fired power station boiler flue gas moisture recovery and fine particle
The system and method for removing.
Background technology
Coal resources in China is mainly distributed on the drought and water-scarce areas such as Shanxi, Shaanxi, the Inner Mongol, Xinjiang, and water source is deficient tight
Local energy resources construction of base and economic development are govern again.Therefore, how efficiently to be generated electricity, realized coal-fired using coal resources
The energy-saving and water-saving environmental protection operation in power station, is the challenge that China's thermal power industry can not be evaded and necessarily face at present and in the future.
Wet process of FGD as the most widely used flue gas desulfurization technique of current coal-fired power station boiler, have technology into
The ripe, remarkable advantage such as desulfuration efficiency is high, but there is also water consumption rate it is high the shortcomings that, make its northern drought and water-scarce area promote by
Considerable restraint.Moisture after being burnt using technological means to coal fired power plant in flue gas is recycled, and has significant section
Water effect, it is the inevitable choice that coal fired power plant realizes energy-saving and water-saving operation.
After the moisture in flue gas is condensed, substantial amounts of pollutant such as fine particulates, NH4 +、SOxAnd the nuisance such as Hg
Matter is together removed, it might even be possible to realizes " zero water consume " wet process of FGD.Substantial amounts of condensation water recovery and use can also be reduced
Power plant water amount, the meaning of this " the few water of rich coal " regional development power industry western to China are particularly great.
Fine particle particularly aerodynamic diameter is less than 2.5 microns of particulate matter (PM2.5) it is China's urban atmosphere
Primary pollutant, fire coal is one of main source of fine particle in China's air, and as haze weather takes place frequently, fine particle is special
It is not PM2.5Emission control turn into be badly in need of solve key issue.But the removing sulfuldioxide of fine particle is in the presence of de- at present
Except the problems such as efficiency is relatively low or involves great expense, cause still there are a large amount of fine particles to be exhausted among air.
The main path of fine particle removing at present is by using physics such as steam phase transforming, acoustic agglomeration or electromagnetism reunions
Or chemical means increase fine particle particle diameter, then removed with conventional dust removal equipment.
CN10341849A discloses to be removed using the method raising electricity that water vapour and the reunion of coupling ultrasonic ripple are sprayed into flue gas
Dirt device is to PM in flue gas2.5The removal efficiency of dust.Itd is proposed in CN103736356B and CN104667695B in conventional electric cleaner
The acoustic wavefield that preceding flue sets improves the efficiency of conventional electric cleaner removing fine particle.One kind is disclosed in CN103706219B
Into flue gas atomized water spray and set sound source improve fine particle acoustic agglomeration efficiency, control PM2.5The method of discharge.
CN201105202Y, CN101219333A disclose the fine grain device of cooperation-removal in a kind of smoke-gas wet desulfurization, by
Smoke reutilizer and phase transformation condensing chamber are set respectively before and after desulfurizing tower, realize fine grain condensation growth and removing；
CN101732970B discloses makes cigarette by setting prewashing column and steam phase transforming room in wet flue gas desulfurization tower and adding steam
Gas reaches supersaturation and occurs the method for fine grained phase transformation condensation growth, and this method needs to add certain quantity of steam, energy consumption compared with
Height, and whole system is complex.CN100531862C is devised one kind and taken off based on sound wave with additional seed grain synergy
Except fine grain apparatus and method, although this method is advantageous to improve fine grain removal efficiency, but due to solid seed grain
It is difficult to be dispersed in air-flow after addition, have impact on agglomerating effect, meanwhile, addition solid particle increases in the gas flow again after
The load of dust remove of continuous deduster.
The content of the invention
A kind of the shortcomings that it is an object of the invention to overcome above-mentioned prior art, there is provided coal-fired power station boiler flue gas moisture
Recovery and the system and method for fine particle removing, the device and method can realize the recovery of flue gas reclaimed water share and fine particle
Removing, overcome the shortcomings that traditional acoustic agglomeration efficiency is low, sound pressure level is high, energy consumption is big, and seed grain and volume need not be added
Outer water vapour.
To reach above-mentioned purpose, the recovery of coal-fired power station boiler flue gas moisture and fine particle removing of the present invention are
System includes flue gas input channel, wet flue gas desulfurization tower, heat exchanger entrance flue, condensing heat exchanger and chimney；
Flue gas input channel is connected with the entrance of wet flue gas desulfurization tower, and the first order is provided with wet flue gas desulfurization tower
Demister, the outlet of wet flue gas desulfurization tower is connected through heat exchanger entrance flue with the flue gas side entrance of condensing heat exchanger, cold
The flue gas side outlet of solidifying heat exchanger is connected through second level demister with chimney, wherein, condensing heat exchanger gas approach inwall
Front side, rear side and the top of flue inner wall are provided with array sound wave where front side, rear side and top and condensing heat exchanger
Generator.
Also include coolant intake pipe road, coolant outlet hose road, the first cooling sea water regulating valve, the second cooling sea water regulating valve
And cooling water circulating pump, wherein, coolant intake pipe road is connected with the entrance of the second cooling sea water regulating valve, and the second cooling water is adjusted
The outlet of section valve is connected with the outlet of the first cooling sea water regulating valve by the entrance of pipeline and Guan Houyu cooling water circulating pumps, cold
But the outlet of water-circulating pump is connected with the cooling water side entrance of condensing heat exchanger, the cooling water side of condensing heat exchanger outlet and the
The entrance and coolant outlet hose road of one cooling sea water regulating valve are connected.
The driving source of array sonic generator is compressed air or vapor, and the frequency of arrayed ultrasonic wave producer is
1000Hz-2200Hz, the sound pressure level of arrayed ultrasonic wave producer is 110dB~150dB.
Also include condensation water collection pond, the top of array sonic generator, the top of condensing heat exchanger and the second level are removed
Water flushing device, the lower section of array sonic generator, the lower section of condensing heat exchanger and the second level are provided with above day with fog
Water leg is provided with below demister, condensation water collection pond is connected with water leg.
The material of condensing heat exchanger is anti-corrosion material.
Condensing heat exchanger is in horizontally disposed or is arranged vertically.
The method of the recovery of coal-fired power station boiler flue gas moisture and fine particle removing of the present invention comprises the following steps：
Flue gas is input to wet flue gas desulfurization tower through flue gas input channel and carries out wet method caused by coal-fired power station boiler burning
Desulfurization, the flue gas after wet desulphurization are entered in heat exchanger entrance flue after first order demister demisting；
First cooling sea water regulating valve is adjusted according to the temperature, humidity and exhaust gas volumn of wet flue gas desulfurization tower exit flue gas
The rotating speed of aperture, the aperture of the second cooling sea water regulating valve and cooling water circulating pump, make condensing heat exchanger cooling water side porch cold
But the water temperature of water is less than the water dew point of flue gas, while adjusts the working frequency of array sonic generator, sends out array sound wave
Raw device produces stable standing-wave sound field, the condensed heat exchanger cooling of flue gas, the vapor in flue gas is reached hypersaturated state, and
Condensation is undergone phase transition by the nuclei of condensation of the fine grained in flue gas, while is reunited in the presence of standing-wave sound field, finally in weight
Fallen down in the presence of power；The flue gas of condensing heat exchanger output after the demister demisting of the second level through chimney by discharging.
The invention has the advantages that：
The system and method for the recovery of coal-fired power station boiler flue gas moisture and fine particle removing of the present invention is specific
During operation, flue gas condensed heat exchanger cooling again after wet flue gas desulfurization tower wet desulphurization, so that the vapor in flue gas
Reach hypersaturated state, and condensation is undergone phase transition by the nuclei of condensation of the fine grained in flue gas, while in the presence of standing-wave sound field
Quickly reunited, finally fallen down under gravity, so that the NH in flue gas4 +、SO2, fine particle and Hg
Etc. the harmful substance for being dissolved in water be condensed water removing, realize coal-fired power station boiler flue gas moisture recovery and fine particle removing,
Overcome the shortcomings that traditional acoustic agglomeration efficiency is low, sound pressure level is high and energy consumption is big.In addition, it is necessary to explanation, the present invention need not
It is recovery and the fine particle that coal-fired power station boiler flue gas moisture can be achieved to add solid seed grain and extra water vapour
Removing, has good society and economic benefit.
Further, by water flushing device periodically to array sonic generator, condensing heat exchanger and second level demister
Enter water-filling flushing, ensure the heat exchange efficiency of condensing heat exchanger and the removal effect of second level demister.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Wherein, 1 be wet flue gas desulfurization tower, 2 be first order demister, 3 be array sonic generator, 4 be water rinse
Device, 5 be condensation water collection pond, 6 be cooling water circulating pump, 7 be condensing heat exchanger, 8 be second level demister, 9 be chimney, 10
It is the second cooling sea water regulating valve for the first cooling sea water regulating valve, 11.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, the system of the recovery of coal-fired power station boiler flue gas moisture and fine particle removing of the present invention includes
Flue gas input channel, wet flue gas desulfurization tower 1, heat exchanger entrance flue, condensing heat exchanger 7 and chimney 9；Flue gas input channel with
The entrance of wet flue gas desulfurization tower 1 is connected, and first order demister 2, wet process of FGD are provided with wet flue gas desulfurization tower 1
The outlet of tower 1 is connected through heat exchanger entrance flue with the flue gas side entrance of condensing heat exchanger 7, the fume side of condensing heat exchanger 7
Outlet is connected through second level demister 8 with chimney 9, wherein, the front side of the gas approach inwall of condensing heat exchanger 7, rear side and on
Side and front side, rear side and the top of the place flue inner wall of condensing heat exchanger 7 are provided with array sonic generator 3.
Present invention additionally comprises coolant intake pipe road, coolant outlet hose road, the cooling of the first cooling sea water regulating valve 10, second
Water regulating valve 11 and cooling water circulating pump 6, wherein, coolant intake pipe road is connected with the entrance of the second cooling sea water regulating valve 11
Logical, the outlet of the second cooling sea water regulating valve 11 is followed with the outlet of the first cooling sea water regulating valve 10 by pipeline and Guan Houyu cooling waters
The entrance of ring pump 6 is connected, and the outlet of cooling water circulating pump 6 is connected with the cooling water side entrance of condensing heat exchanger 7, and condensation is changed
The cooling water side outlet of hot device 7 is connected with the entrance and coolant outlet hose road of the first cooling sea water regulating valve 10.
The driving source of array sonic generator 3 is compressed air or vapor, the frequency of arrayed ultrasonic wave producer
For 1000Hz-2200Hz, the sound pressure level of arrayed ultrasonic wave producer is 110dB~150dB.
Present invention additionally comprises condensation water collection pond 5, the top of array sonic generator 3, the top of condensing heat exchanger 7 and
The top of second level demister 8 is provided with water flushing device 4, the lower section of array sonic generator 3, condensing heat exchanger 7
Lower section and the lower section of second level demister 8 are provided with water leg, and condensation water collection pond 5 is connected with water leg.
The material of condensing heat exchanger 7 is anti-corrosion material；Condensing heat exchanger 7 is in horizontally disposed or is arranged vertically.
The method of the recovery of coal-fired power station boiler flue gas moisture and fine particle removing of the present invention comprises the following steps：
Flue gas is input to wet flue gas desulfurization tower 1 through flue gas input channel and carries out wet method caused by coal-fired power station boiler burning
Desulfurization, the flue gas after wet desulphurization are entered in heat exchanger entrance flue after the demisting of first order demister 2；
First cooling sea water regulating valve is adjusted according to the temperature, humidity and exhaust gas volumn of the exit flue gas of wet flue gas desulfurization tower 1
The rotating speed of 10 aperture, the aperture of the second cooling sea water regulating valve 11 and cooling water circulating pump 6, make the cooling water side of condensing heat exchanger 7
The water temperature of porch cooling water is less than the water dew point of flue gas, while adjusts the working frequency of array sonic generator 3, makes array
Formula sonic generator 3 produces stable standing-wave sound field, and the condensed heat exchanger 7 of flue gas cools, and reaches the vapor in flue gas
Saturation state, and condensation is undergone phase transition by the nuclei of condensation of the fine grained in flue gas, while rolled into a ball in the presence of standing-wave sound field
It is poly-, finally fall under gravity in water leg；The flue gas that condensing heat exchanger 7 exports is removed by second level demister 8
Discharged after mist through chimney 9.
Flue gas side entrance, flue gas side outlet, cooling water side entrance and the cooling water side porch of condensing heat exchanger 7 are respectively provided with
Have temperature sensor, pressure sensor and flowmeter, wherein, the cooling water temperature of the cooling water side porch of condensing heat exchanger 7 and
Flow can be adjusted by the first cooling sea water regulating valve 10, the second cooling sea water regulating valve 11 and cooling water circulating pump 6.
The flue size of mounted array formula sonic generator 3 and condensing heat exchanger 7 is changed by pending exhaust gas volumn and condensation
The resistance of the hot fume side of device 7 determines, it is ensured that flue gas is less than or equal to 10m/s in the flow velocity of this section of flue, and the residence time is more than or equal to 2
Second.
The characteristics of present invention is in nearly saturation or hypersaturated state for the exiting flue gas humidity of wet flue gas desulfurization tower 1, lead to
Cross and flue gas progress condensing heat-exchange is reached into saturation or hypersaturated state, while flue gas is carried out using array sonic generator 3
Processing, makes the vapor in flue gas condense reunion under phase transformation and the coupling of sound wave with fine particle and grows up, so as to improve
The efficiency that drop and fine particle reunion are grown up, and without adding seed grain or extra water vapour in acoustic wavefield, i.e.,
The recovery of coal-fired power station boiler flue gas moisture and the low energy consumption removing of fine particle can be achieved, there is good social and economic effect
Benefit.
Claims (7)
1. a kind of coal-fired power station boiler flue gas moisture recovery and the system of fine particle removing, it is characterised in that defeated including flue gas
Enter pipeline, wet flue gas desulfurization tower (1), heat exchanger entrance flue, condensing heat exchanger (7) and chimney (9)；
Flue gas input channel is connected with the entrance of wet flue gas desulfurization tower (1), and first is provided with wet flue gas desulfurization tower (1)
Level demister (2), fume side of the outlet of wet flue gas desulfurization tower (1) through heat exchanger entrance flue and condensing heat exchanger (7) enter
Mouth is connected, and the flue gas side outlet of condensing heat exchanger (7) is connected through second level demister (8) with chimney (9), wherein, heat exchange
The front side of flue inner wall where front side, rear side and the top of device gas approach inwall and condensing heat exchanger (7), rear side and on
Side is provided with array sonic generator (3).
2. coal-fired power station boiler flue gas moisture recovery according to claim 1 and the system of fine particle removing, its feature
It is, in addition to coolant intake pipe road, coolant outlet hose road, the first cooling sea water regulating valve (10), the second chilled water modulation
Valve (11) and cooling water circulating pump (6), wherein, coolant intake pipe road is connected with the entrance of the second cooling sea water regulating valve (11)
Logical, the outlet of the second cooling sea water regulating valve (11) is cooled down with the outlet of the first cooling sea water regulating valve (10) by pipeline and Guan Houyu
The entrance of water-circulating pump (6) is connected, the outlet of cooling water circulating pump (6) and the cooling water side entrance phase of condensing heat exchanger (7)
Connection, the cooling water side outlet of condensing heat exchanger (7) and the entrance and coolant outlet hose road of the first cooling sea water regulating valve (10)
It is connected.
3. coal-fired power station boiler flue gas moisture recovery according to claim 1 and the system of fine particle removing, its feature
It is, the driving source of array sonic generator (3) is compressed air or vapor, and the frequency of arrayed ultrasonic wave producer is
1000Hz-2200Hz, the sound pressure level of arrayed ultrasonic wave producer is 110dB~150dB.
4. coal-fired power station boiler flue gas moisture recovery according to claim 1 and the system of fine particle removing, its feature
It is, in addition to condensation water collection pond (5), the top of array sonic generator (3), the top of condensing heat exchanger (7) and
Water flushing device (4), the lower section of array sonic generator (3), condensing heat exchanger are provided with above two level demister (8)
(7) water leg is provided with below lower section and second level demister (8), condensation water collection pond (5) are connected with water leg.
5. coal-fired power station boiler flue gas moisture recovery according to claim 1 and the system of fine particle removing, its feature
It is, the material of condensing heat exchanger (7) is anti-corrosion material.
6. coal-fired power station boiler flue gas moisture recovery according to claim 1 and the system of fine particle removing, its feature
It is, condensing heat exchanger (7) is in horizontally disposed or is arranged vertically.
7. a kind of coal-fired power station boiler flue gas moisture recovery and the method for fine particle removing, it is characterised in that will based on right
The system that the coal-fired power station boiler flue gas moisture described in 2 reclaims and fine particle removes is sought, is comprised the following steps：
Flue gas caused by coal-fired power station boiler burning is input to wet flue gas desulfurization tower (1) progress wet method through flue gas input channel and taken off
Sulphur, the flue gas after wet desulphurization are entered in heat exchanger entrance flue after first order demister (2) demisting；
First cooling sea water regulating valve is adjusted according to the temperature, humidity and exhaust gas volumn of wet flue gas desulfurization tower (1) exit flue gas
(10) rotating speed of aperture, the aperture of the second cooling sea water regulating valve (11) and cooling water circulating pump (6), makes condensing heat exchanger (7)
The water temperature of cooling water side porch cooling water is less than the water dew point of flue gas, while adjusts the work of array sonic generator (3)
Frequency, array sonic generator (3) is produced stable standing-wave sound field, the condensed heat exchanger of flue gas (7) cooling, make in flue gas
Vapor reach hypersaturated state, and undergo phase transition condensation by the nuclei of condensation of the fine grained in flue gas, while in standing-wave sound field
In the presence of reunited, finally fall down under gravity；The flue gas of condensing heat exchanger (7) output passes through the second level
Discharged after demister (8) demisting through chimney (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710813524.6A CN107398161A (en) | 2017-09-11 | 2017-09-11 | Coal-fired power station boiler flue gas moisture reclaims and the system and method for fine particle removing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710813524.6A CN107398161A (en) | 2017-09-11 | 2017-09-11 | Coal-fired power station boiler flue gas moisture reclaims and the system and method for fine particle removing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631067A (en) * | 2019-01-04 | 2019-04-16 | 浙江大学 | A kind of recycling of flue gas moisture, gas cleaning and UTILIZATION OF VESIDUAL HEAT IN association system device |
| CN110292828A (en) * | 2019-07-31 | 2019-10-01 | 中国计量大学 | A kind of water lift disappears white device and its water lift disappears whitening method |
| CN110604941A (en) * | 2019-10-17 | 2019-12-24 | 青岛达能环保设备股份有限公司 | Pollutant removing system for flue gas condensable particles |
| CN112023593A (en) * | 2020-09-14 | 2020-12-04 | 大唐环境产业集团股份有限公司 | Multi-product recovery system and method for wet flue gas working medium containing solid particles |
| CN113156049A (en) * | 2021-05-08 | 2021-07-23 | 西安热工研究院有限公司 | Flue gas moisture retrieves experimental apparatus |
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| CN109631067A (en) * | 2019-01-04 | 2019-04-16 | 浙江大学 | A kind of recycling of flue gas moisture, gas cleaning and UTILIZATION OF VESIDUAL HEAT IN association system device |
| CN110292828A (en) * | 2019-07-31 | 2019-10-01 | 中国计量大学 | A kind of water lift disappears white device and its water lift disappears whitening method |
| CN110292828B (en) * | 2019-07-31 | 2023-06-23 | 中国计量大学 | Water extraction and whitening device and water extraction and whitening method thereof |
| CN110604941A (en) * | 2019-10-17 | 2019-12-24 | 青岛达能环保设备股份有限公司 | Pollutant removing system for flue gas condensable particles |
| CN112023593A (en) * | 2020-09-14 | 2020-12-04 | 大唐环境产业集团股份有限公司 | Multi-product recovery system and method for wet flue gas working medium containing solid particles |
| CN113156049A (en) * | 2021-05-08 | 2021-07-23 | 西安热工研究院有限公司 | Flue gas moisture retrieves experimental apparatus |
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